Alec Baldwin has reprised in his role as Donald Trump for the latest episode of Saturday Night Live’s Weekend Update, identifying the US president as the true martyr of the tragic Charlottesville rally.

A 12-year-old singing ventriloquist has been awarded US$1 (A$1.3) million prize and her own Las Vegas show after taking the America's Got Talent crown on the season 12 finale of the NBC reality competition.

Prime Minister Malcolm Turnbull insists the Liberal Party loss in the Western Australian election was "overwhelmingly" down to state issues and has declined to rule out doing further preference deals with One Nation in the future.

WA's new Labor Premier Mark McGowan trounced Colin Barnett's two-term Liberal government yesterday, claiming as many as 41 MPs in the 59-seat parliament.

The prime minister said Mr Barnett has made a remarkable contribution to WA and the nation, and agreed with the ousted premier the result was largely an "it's time" factor after eight-and-a-half years in power.

"He has played a great innings magnificently," Mr Turnbull told reporters in Sydney today.

Asked whether doing a preference deal with One Nation rather than the Nationals was a mistake, Mr Turnbull said this was a matter for the relevant division of the party and was entered into with the intention of maximising Liberal parliamentary representation.

"The next federal election is more than two years away and all preference divisions will be considered by the party organisation closer to an election," he said.

Opposition Leader Bill Shorten had urged the prime minister to take heed of the Liberals' huge loss in WA and rule out once-and-for-all his government doing any further deals with One Nation.

Related Articles

"He is is the national leader - I've ruled it out, he should do the same," he told reporters in Melbourne.

Nationals Leader Barnaby Joyce admitted the One Nation deal was a "mistake", saying it is in the Liberal Party's interest to be close with his party.

"You just have to look ... it hasn't been a good day in the office," Mr Joyce told ABC radio.

Greens Leader Richard Di Natale was more blunt, saying the clear message is Australians are "not mugs" when the Liberals do a "grubby" deal with One Nation.

"If you side up with a party that is openly racist, bigoted, short-sighted, xenophobic, economically illiterate you will be punished for it, and that's what we saw with Colin Barnett's result in WA," Senator Di Natale told Sky News.

Finance Minister and WA senator Mathias Cormann said the result was not unexpected when internal polling suggested the WA Liberals' primary vote was as low as 29 percent and the defeat was a "long time coming".

"We will review all aspects of the campaign and the ultimate outcome and relevant judgments will be made at the right time," he told ABC television.

Mr McGowan overcame critics within his own party which said he didn't have the "x-factor" to be premier after Mr Barnett defeated him in 2013, which culminated in a leadership challenge by former federal minister Stephen Smith last year.

He has also won despite not really offering an obvious path out of the record debt and deficit WA is in along with a weak economy, which highlights how unpopular Mr Barnett and his Liberal National government were.

Labor has made $5 billion in promises during the campaign including a near $3 billion ambitious new Metronet rail system.